Upcoming Polar Vortex 2025 Forecast. There is a chance that the pattern could change by the end of winter and early spring, associated with the polar vortex. Recent signals indicate the possibility of a block at high latitudes, with a strengthening of geopotential height anomalies over greenland and northern europe.
That is the foundation for the polar vortex for the upcoming winter 2024/2025. Looking below at the forecast for late september, you can see the polar vortex is already more developed and rapidly increasing in size and.